A Punishment of Expectations, Not Results

The case of Fortinet is telling. The cybersecurity specialist reports quarterly revenue up 20% and raises its annual guidance. Yet its stock sheds 26% on Thursday and 24.4% on the week, as investors deem its growth prospects disappointing. Same mechanics at ServiceNow (-33.87%), penalized by a backlog expected to slow from 20.5% to 18.5%.

These sessions unfold in a nervous climate. The Nasdaq Composite, up 2.3% through Wednesday, gave up 2.9% on Friday and ends the week at -2%. Alphabet drops 12.61% after negative free cash flow of $9.1 billion, reviving doubts about the cost of the AI race.

Semiconductors Under Pressure

In chips, Intel suffered its worst session since the 1970s after disappointing guidance. The plunge wiped roughly $12 billion off the state's stake in the group. AMD reports Tuesday: its results will serve as a test for a sector whose valuation hinges on data-center demand. Not every link in the chain is suffering: Vertiv, a supplier of power and cooling equipment for data centers, gains 19.65% on revenue up 61%.

Binance, a Crisis of Confidence

Cybersecurity also weighs on markets through its failures. The Binance hack, estimated at $6.3 billion, would be the largest theft in cryptocurrency history if the figure is confirmed. A preliminary report points to North Korean hackers. Bitcoin falls 4% on the week and 8% in October. BNB loses 5.5%, Solana 6.3% and ether 4%. The exchange says it has secured part of the funds by freezing certain assets and promises to cover user losses.

What the File Does Not Say

Several limitations stand out. No element of the file details a specific technological breakthrough in semiconductors or cybersecurity: the analysis covers market reaction, not innovation itself. Intel's figures remain partial and AMD's are not yet known. Finally, the correction coincides with other factors: a possible rate hike in December, oil around $115 a barrel, the U.S. midterm elections. Isolating the specific effect of tech stocks is therefore impossible.

A Measured Conclusion

At this stage, the facts converge on a limited but clear finding: tech valuations leave little room for disappointment. A deceleration, even a slight one, or a doubt about AI profitability is enough to trigger sharp declines, and a major security incident weakens an entire ecosystem. AMD's results and confirmation of the Binance hack toll will show whether this move reflects volatility or a lasting regime change.

This article was written with the assistance of artificial intelligence and verified by our editorial team.